It should be listed in your Owner's Manual. I have a 2009 Honda Shadow Spirit 750 and just looked up the coolant change interval. It should be changed at 8,000 miles OR every two years - which ever one comes first. Make sure you use the correct coolant too . . . not all coolants are acceptable for motorcycle use.

What was the engine temp when you checked the level? When your engine is cold - the level should be at or above the low mark. The coolant will expand as the engine warms to operating temperature and then the level would be between the two marks.

I would check the recovery tank a couple more times over the next week or so as the engine warms and cools just to make sure the level is where it needs to be. If there was any air left in the cooling system, coolant from the recovery tank would be sucked back when the system cools - replacing the air and possibly lowering the coolant level in the tank.

Out for a ride now, too dark to check I will have to tomorrow, I bleed all the air that I could out, so will have to check the reserve tank in the morning and see what the level is. Hope its good cause I really don't want to buy another bottle of the Honda HP coolant,

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